1978 Ford Bronco Power Distribution Wiring Diagram - Fuse Panel & Splice Index

This is a scanned fold-out page from a Ford factory electrical vacuum/wiring manual, titled "Electrical System — Power Distribution," with a title-block date of 7-19-78 (superseding 7-8-78), consistent with a 1978 model-year Ford truck/Bronco application. The schematic traces battery power from the standard 12-volt battery (and an optional auxiliary 12-volt battery with dual battery relay and accessory safety relay) through the starter motor relay, fuse links, junction block, ignition switch (START/RUN/OFF/ACCY positions), headlamp switch, and the fuse panel. An upper-left legend maps fuse positions F1–F13 with amp ratings and circuits, including panel lamps/cluster illumination, heater or A/C, seat belt, directional signals, dome/courtesy/glove box/underhood lamps and cigar lighter, turn signal flasher, accessory feeds (speed control, heated backlight relay, marker lamp relay, dual battery relay, 4WD indicator), back-up lamps/windshield washer pump, and radio. Right-edge callouts list destination circuits (power tailgate, trailer relays, alternator/regulator, throttle solenoid, A/C-heater, radio, flashers, etc.). Lower panels give connector-by-connector detail boxes with wiring harness part numbers (14401, 14405, 14A005, 14300, 14301) and physical locations, plus a ground-cable table (G-101 through G-1201) and a splice index (S-101 through S-1201) identifying where each splice sits in the harness. Fine print is only partially legible at this scan resolution.